Home / 211,330.35-291,631.26-115,834.98

Finding the Fourth Proportional to 211,330.35, 291,631.26 and 115,834.98

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Solution

The fourth proportional to 211,330.35, 291,631.26 and 115,834.98 is: 159,849.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,330.35 : 291,631.26 = 115,834.98 : x
  2. Step 2: Convert to fraction form
    211,330.35/291,631.26 = 115,834.98/x
  3. Step 3: Cross multiply
    211,330.35x = 291,631.26 × 115,834.98
  4. Step 4: Simplify right side
    211,330.35x = 33,781,101,169.47
  5. Step 5: Solve for x
    x = 33,781,101,169.47/211,330.35
  6. Step 6: Final answer
    x = 159,849.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.